Flood Watch
Redondo Beach, WA
Day 1: December 27, 2024
CATEGORY 3
WHAT
No significant flooding is expected. High tide levels are close to monitoring thresholds but are unlikely to cause flood damage.
WHEN
From 12:00 PM to 2:00 PM PST on December 27, 2024.
IMPACTS
Coastal areas may experience higher than normal tides. Minor water levels near shorelines and low-lying areas, but no substantial flooding anticipated.
ADDITIONAL DETAILS...
- Barometric Pressure: The mean pressure at the time of high tide is 1022.5 hPa, which is significantly higher than pressures observed during historical flooding events (e.g., Category 4 events with pressures around 1002 hPa or lower).
- Tide Height: The expected high tide is approximately 18.548 ft at 1:12 PM, which is higher than the historical Category 3 event on 12/27/2023 (17.460 ft) but lower than the Category 4 events.
- Wind Conditions: Wind speeds are low, averaging around 4 km/h with a wind direction from the northeast. These conditions are not conducive to increased flood risk.
- NOAA Flood Likelihood: NOAA's forecast indicates a low flood likelihood with a 0.0% chance and a distance of -2.63 meters below the flood threshold.
- Comparison with Historical Events: Given the higher barometric pressure and tide heights below historical Category 4 events, the conditions align with a Category 3 classification, indicating a situation worth monitoring but unlikely to cause flooding.
Day 2: December 28, 2024
CATEGORY 3
WHAT
No significant flooding is expected. Tide levels remain near monitoring levels but flooding is unlikely.
WHEN
From 4:00 AM to 6:00 AM PST on December 28, 2024.
IMPACTS
Coastal areas may experience slightly elevated water levels during high tide periods. No significant impacts expected.
ADDITIONAL DETAILS...
- Barometric Pressure: The mean pressure at high tide is 1021.05 hPa, still considerably higher than pressures associated with historical flooding events.
- Tide Height: The high tide is expected to reach approximately 19.169 ft at 4:54 AM, slightly higher than the previous day but below the heights observed in Category 4 historical events.
- Wind Conditions: Wind speeds are higher in the early morning, reaching up to 24 km/h from the south. While higher than the previous day, these speeds are not sufficient to significantly increase flood risk.
- NOAA Flood Likelihood: NOAA forecasts a low flood likelihood with a 0.0% chance and a distance of -1.99 meters below the flood threshold.
- Comparison with Historical Events: Despite higher tides and increased wind speeds, the elevated barometric pressure and tide levels below historical critical values support a Category 3 assessment.
Day 3: December 29, 2024
CATEGORY 3
WHAT
No significant flooding is expected. Tides are approaching monitoring thresholds but are unlikely to result in flooding.
WHEN
From 4:30 AM to 6:30 AM PST on December 29, 2024.
IMPACTS
Minor water level increases along the coast. No substantial impacts anticipated in coastal or low-lying areas.
ADDITIONAL DETAILS...
- Barometric Pressure: Mean pressure during high tide is 1018.58 hPa, slightly lower than previous days but still well above the critical threshold associated with flooding events.
- Tide Height: Anticipated high tide of approximately 19.703 ft at 5:24 AM, the highest of the three days but still below historical Category 4 levels.
- Wind Conditions: Wind speeds are low, ranging from 2 to 8 km/h, with variable directions, not contributing significantly to flood risk.
- NOAA Flood Likelihood: NOAA indicates a low flood likelihood with a 0.1% chance and a distance of -1.52 meters below the flood threshold.
- Comparison with Historical Events: The combination of slightly lower barometric pressure and higher tide levels does not reach the thresholds observed in historical Category 4 or higher events. Conditions remain within a Category 3 classification.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop.